NGK Racing Spark Plug R7420-10 - Box of 4

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SKU: NGK5501
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Sale price$191.36 Regular price$204.12
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About NGK

NGK engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full NGK lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

NGK Racing Spark Plugs: Built for Extreme Performance

When every millisecond counts, trust NGK Racing Spark Plugs (R7420-10) to deliver. Designed with the most grueling racing conditions in mind, these spark plugs are engineered to withstand extreme temperatures and pressures, providing consistent and powerful ignition where it matters most. NGK's legacy in motorsports is unmatched, powering champions across every racing venue worldwide with their cutting-edge ignition technology.

Uncompromising Design for Competitive Edge

  • Extreme Durability: Constructed to endure the harshest racing environments, ensuring reliability lap after lap.
  • Optimized Ignitability: Special configurations and designs of the center electrode guarantee maximum ignitability for rapid combustion and power delivery.
  • Ultra-High Performance: Available in a variety of heat ranges to perfectly match specific racing applications and engine tuning.
  • Versatile Application: Tailored for a wide array of racing setups, from drag racing to circuit racing, ensuring optimal spark for peak engine output.
  • Proven Track Record: Relied upon by professional racers globally for their consistent performance and ability to handle high-stress situations.

This box of four NGK R7420-10 Racing Spark Plugs is the ultimate choice for serious competitors and performance enthusiasts who demand the absolute best from their engine. Don't compromise on your ignition system when pushing the limits. Equip your race machine with NGK Racing plugs and experience the difference. Get your high-performance racing components at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About NGK

NGK engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full NGK lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

NGK Racing Spark Plugs: Built for Extreme Performance

When every millisecond counts, trust NGK Racing Spark Plugs (R7420-10) to deliver. Designed with the most grueling racing conditions in mind, these spark plugs are engineered to withstand extreme temperatures and pressures, providing consistent and powerful ignition where it matters most. NGK's legacy in motorsports is unmatched, powering champions across every racing venue worldwide with their cutting-edge ignition technology.

Uncompromising Design for Competitive Edge

  • Extreme Durability: Constructed to endure the harshest racing environments, ensuring reliability lap after lap.
  • Optimized Ignitability: Special configurations and designs of the center electrode guarantee maximum ignitability for rapid combustion and power delivery.
  • Ultra-High Performance: Available in a variety of heat ranges to perfectly match specific racing applications and engine tuning.
  • Versatile Application: Tailored for a wide array of racing setups, from drag racing to circuit racing, ensuring optimal spark for peak engine output.
  • Proven Track Record: Relied upon by professional racers globally for their consistent performance and ability to handle high-stress situations.

This box of four NGK R7420-10 Racing Spark Plugs is the ultimate choice for serious competitors and performance enthusiasts who demand the absolute best from their engine. Don't compromise on your ignition system when pushing the limits. Equip your race machine with NGK Racing plugs and experience the difference. Get your high-performance racing components at GGCRACING.

Product Details

Product Description

About NGK

NGK engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full NGK lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

NGK Racing Spark Plugs: Built for Extreme Performance

When every millisecond counts, trust NGK Racing Spark Plugs (R7420-10) to deliver. Designed with the most grueling racing conditions in mind, these spark plugs are engineered to withstand extreme temperatures and pressures, providing consistent and powerful ignition where it matters most. NGK's legacy in motorsports is unmatched, powering champions across every racing venue worldwide with their cutting-edge ignition technology.

Uncompromising Design for Competitive Edge

  • Extreme Durability: Constructed to endure the harshest racing environments, ensuring reliability lap after lap.
  • Optimized Ignitability: Special configurations and designs of the center electrode guarantee maximum ignitability for rapid combustion and power delivery.
  • Ultra-High Performance: Available in a variety of heat ranges to perfectly match specific racing applications and engine tuning.
  • Versatile Application: Tailored for a wide array of racing setups, from drag racing to circuit racing, ensuring optimal spark for peak engine output.
  • Proven Track Record: Relied upon by professional racers globally for their consistent performance and ability to handle high-stress situations.

This box of four NGK R7420-10 Racing Spark Plugs is the ultimate choice for serious competitors and performance enthusiasts who demand the absolute best from their engine. Don't compromise on your ignition system when pushing the limits. Equip your race machine with NGK Racing plugs and experience the difference. Get your high-performance racing components at GGCRACING.

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